Near-Visible Topological Edge States in a Silicon Nitride Platform
Abstract
Demonstrations of topological photonics have so far largely been confined to infrared wavelengths where imaging technology and access to low-dimensional quantum materials are both limited. Here, we designed and fabricated silicon nitride ring-resonator arrays to demonstrate photonic topological edge states at ~780nm. We observed edge states corresponding to the integer quantum Hall Hamiltonian with topological protection against fabrication disorder. This demonstration extends the concept of topological edge states to the near-visible regime and paves the way for nonlinear and non-Hermitian topological photonics with the rich library of near-visible quantum emitters.
Publication Details
- Authors
- Publication Type
- Journal Article
- Year of Publication
- 2024
- Journal
- arXiv
- Volume
- 2404
- Issue
- 01432
- Date Published
- 04/2024